Fogaskerékházak

Fogaskerékházak, or gearbox housings, are the outer shells that enclose gear trains, bearings, and lubrication in mechanical systems. Their primary functions are to provide rigid support for shafts and gears, contain lubricant, keep contaminants out, and aid heat dissipation. They also serve as the mounting framework for the entire gearbox assembly.

Typically made from cast iron, steel, or aluminium alloys, fogaskerékházak may incorporate reinforced sections for high-load applications. They provide bearing housings, mounting flanges, and bosses for lubrication plugs, seals, and cooling features. Some designs are modular, using end covers or detachable side plates to allow access for maintenance.

Design must control internal clearances to preserve gear alignment and limit backlash, while maintaining stiffness. Sealing and lubrication are critical to prevent leaks and corrosion; ventilation or oil-cooling passages may be included. Variants include inline gearboxes, right-angle or double-gear configurations, and planetary gear systems, each requiring appropriate wall thickness and support features.

Most fogaskerékházak are produced by casting, followed by machining of critical surfaces; forged or welded constructions are used for very high-strength demands. Surface finishing, heat treatment, and dimensional tolerances influence performance and service life.

Applications span automotive transmissions, industrial gearboxes, wind turbines, robotics, and machine tools. Regular inspection focuses on cracks, corrosion, seal integrity, and lubricant condition. Early signs of wear or damage can indicate the need for maintenance or component replacement to prevent gearbox failure.